6 search results - page 1 / 2 » New Techniques for Anonymous HIBE with Short Ciphertexts in ... |
ITIIS
2010
13 years 4 months ago
2010
Anonymous hierarchical identity based encryption (HIBE) is an extension of identity based encryption (IBE) that can use an arbitrary string like an e-mail address for a public key...
TCC
2010
Springer
14 years 6 months ago
2010
Springer
We construct a fully secure HIBE scheme with short ciphertexts. The previous construction of Boneh, Boyen, and Goh was only proven to be secure in the selective model, under a non...
PAIRING
2010
Springer
13 years 8 months ago
2010
Springer
Lewko and Waters [Eurocrypt 2010] presented a fully secure HIBE with short ciphertexts. In this paper we show how to modify their construction to achieve anonymity. We prove the s...
CRYPTO
2009
Springer
14 years 4 months ago
2009
Springer
We present a new methodology for proving security of encryption systems using what we call Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption ...
EUROCRYPT
2010
Springer
14 years 2 months ago
2010
Springer
In this paper, we present two fully secure functional encryption schemes. Our first result is a fully secure attribute-based encryption (ABE) scheme. Previous constructions of AB...